What Can We Learn from the Study of Twins?: An Evaluation of the Equal Environments Assumption - Hardcover

Felson, Jacob

9780773429079: What Can We Learn from the Study of Twins?: An Evaluation of the Equal Environments Assumption

Hardcover

ISBN 10: 0773429077 ISBN 13: 9780773429079

Verlag: Edwin Mellen Press Ltd, 2012

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The book argues that the empirical support for the validity of the EEA (Equal Environments Assumption) is not as strong as some behavior geneticists have claimed. The study re-analyzes some of the data on which ritually cited research is based to expose some of the flaws in the research.

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Cr�ticas

"This study is very thorough and methodologically sound." (Prof. Alan Booth Penn State University) "The author's manuscript is extremely well done and timely." (Prof. Christopher Mugimu Makerere University)"

Rese�a del editor

This is the most comprehensive analysis of the equal environments assumption to date. Most evidence about the effects of genes on behavior comes from twin studies. The classic twin study method compares the similarity between monozygotic (MZ) twins on some trait with the similarity of dizygotic (DZ) twins on that same trait. If the rearing environments of MZ and DZ twins are analogous, then the magnitude of genetic influence on variation in a trait can be estimated. This is based on the extent to which the correlation between MZ twins exceeds the correlation for DZ twins. If the rearing environments for MZ and DZ twins are not analogous, then the estimates of heritability generated from this method may be confounded.

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